An element which exists in more than one crystalline form is said to exhibit
An element which exists in more than one crystalline form is said to exhibit
- A) polymorphism
- B) isotopy
- C) allotropy
- D) isomerism
Correct Answer: C) allotropy
Explanation
This Chemistry question is asking about the name given to an element that exists in more than one crystalline form. The options are: A) polymorphism, B) isotopy, C) allotropy (which is the correct answer), and D) isomerism.When an element exists in more than one crystalline form, it is said to exhibit allotropy. Allotropy is a phenomenon in which an element can exist in two or more different physical forms (crystalline or amorphous) under different conditions such as temperature and pressure. This is due to the fact that the atoms of an element can arrange themselves in different ways to form different structures, each with its own unique physical and chemical properties.
Polymorphism, on the other hand, refers to the ability of a substance to exist in more than one crystalline form, regardless of whether it is an element or a compound. Isotopy refers to the existence of isotopes, which are atoms of the same element with different numbers of neutrons in their nuclei. Isomerism refers to the existence of molecules with the same chemical formula but different structures and properties.
In summary, when an element exists in more than one crystalline form, it exhibits allotropy. To learn more about this concept and related topics, please read the relevant sections of the recommended textbooks.